#666A98#666A98

#666A98 is a mid, moderate blue. Relative luminance 0.154; OKLCH L 54.0% C 0.072 H 279.9°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#666A98
RGB	rgb(102, 106, 152)
HSL	hsl(235, 20%, 50%)
HSV	hsv(235, 33%, 60%)
CMYK	cmyk(32.9%, 30.3%, 0%, 40.4%)
CIE-LAB	lab(46.18, 9.79, -25.51)
CIE-LCH	lch(46.18, 27.33, 290.99°)
OKLab	oklab(53.96% 0.0123 -0.0709)
OKLCH	oklch(53.96% 0.072 279.9)
XYZ	xyz(16.2995, 15.3993, 31.8133)
Luminance	0.1540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666A98 #989466

analogous

#668398 #666A98 #7B6698

triadic

#666A98 #98666A #6A9866

tetradic

#666A98 #986683 #989466 #66987B

square

#666A98 #986683 #989466 #66987B

split-complementary

#666A98 #987B66 #839866

monochromatic

#35374F #4D5073 #666A98 #8A8DB1 #AFB1C9

Accessibility & contrast

On white

5.15

#666A98 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#666A98 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666A98

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666A98	#FFFFFF	#000000	##FFFFFF
##666A98	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C6F9A

Deuteranopia (green-blind)

#5A6C97

Tritanopia (blue-blind)

#59737A

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #666a98;
/* rgb */ color: rgb(102, 106, 152);
/* oklch */ color: oklch(54.0% 0.072 279.9);

Tailwind

colors: {
  custom: {
    50: '#9394b6',
    500: '#666a98',
    950: '#000000',
  },
}

SCSS

$custom: #666a98;
$custom-light: #9394b6;
$custom-dark: #000000;

JSON

{
  "hex": "#666a98",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 152
  },
  "hsl": {
    "h": 235.2,
    "s": 19.685,
    "l": 49.804
  },
  "oklch": {
    "l": 0.53964,
    "c": 0.07194,
    "h": 279.9
  },
  "luminance": 0.154
}

Semantic roles & 50–950 ramp

primary

#666A98

secondary

#B8B6A2

accent

#B66CBC

background

#F9F9FB

surface

#F1F1F6

border

#CBCBD0

text

#0D0D11

muted

#7E7E80

Preview Lab

Preview with #666A98

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →